Abstract: An apparatus for cleaning a floor surface including a control unit, a cleaning member for picking up dirt from the floor surface by moving the cleaning member, and an electric motor for moving the cleaning member. The electric motor is such that relative movement between a stator and a rotor of the electric motor can lead to an induction of a voltage and a reverse current. The control unit is configured such that a power supply of the electric motor is temporarily interrupted during a cleaning operation of the floor surface, and the control unit identifies a present surface condition of the floor surface currently being cleaned by means of the cleaning member on the basis of a detected current curve of the electric motor.

Abstract: An apparatus for cleaning a floor surface including a control unit, a cleaning member for picking up dirt from the floor surface by moving the cleaning member, and an electric motor for moving the cleaning member. The electric motor is such that relative movement between a stator and a rotor of the electric motor can lead to an induction of a voltage and a reverse current. The control unit is configured such that a power supply of the electric motor is temporarily interrupted during a cleaning operation of the floor surface, and the control unit identifies a present surface condition of the floor surface currently being cleaned by means of the cleaning member on the basis of a detected current curve of the electric motor.

Abstract: The invention relates to a multimedia player device for playing multimedia with automatic sound and video settings, and particularly a player device for playing sound from a data file, capable of automatic equalizer setting based on meta-data contained in the data file. The player device (1) comprises: a decoder (3) for extracting meta-data from a data file (2) further containing sound data; a control unit (4); a sound reproduction system (5) with an equalizer (6), adapted to reproduce sound from the sound data; wherein the control unit (4) is adapted to control the equalizer (6) with regard to tone control in dependence of the meta-data, suitably genre information. A number of predefined equalizer settings may be used automatically by the device.